Information
-
Patent Grant
-
6321430
-
Patent Number
6,321,430
-
Date Filed
Friday, December 4, 199826 years ago
-
Date Issued
Tuesday, November 27, 200123 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
-
CPC
-
US Classifications
Field of Search
US
- 029 33 P
- 029 563
- 029 564
- 409 219
- 409 225
- 269 287
- 221 312 R
- 221 119
- 408 103
- 198 86705
- 198 8038
- 198 80314
- 198 80315
- 206 386
- 206 326
- 206 328
-
International Classifications
- B23Q306
- B23C900
- B41F1736
- B65G4724
-
Abstract
A system for holding or transporting engraveable workpieces of different configurations is provided. The system includes a first workpiece carrier that has an internal relief configured to receive a first workpiece having a first configuration. The system also includes a second workpiece carrier that has an internal relief configured to receive a second workpiece having a second configuration. The outer surface of the second workpiece carrier is substantially the same as the outer shape of the first workpiece carrier, to thereby provide a carrier of uniform outer dimensions regardless of the workpiece configuration. The carrier may hold the workpiece within the internal relief through a snap lock and in such a manner as to avoid contact with and possible damage from an adjacently stored workpiece.
Description
BACKGROUND OF THE INVENTION
The present invention relates generally to the field of engraving. More particularly, the invention relates to a method and system for holding and transporting engraveable workpieces of different configurations.
There is a great consumer demand for personally engraved items of many different shapes and sizes. To meet this demand, many stores offer a variety of engraveable items to consumers. These stores maintain engraving machines on the premises so that the engraveable items may be engraved with a message or design chosen by the consumer.
There are two basic types of engraving machines, manual and automated. Typically, a manual engraving machine must be operated by a skilled engraver. One of the necessary skills is the ability to properly position a workpiece in the engraving machine. If the workpiece is not positioned properly in the machine, the engraving process will result in a ruined workpiece. Maintaining a skilled engraver on site can be an expensive proposition for many small stores.
Automated engraving machines are viable alternatives to the manual engraving machines. An automated engraving machine is designed to perform many of the detailed portions of the engraving operation and, thus, avoid the need to have a skilled engraver complete the engraving. However, a problem with the known automated engraving machines is the cost associated with the need to handle workpieces of different configurations. To handle differently shaped workpieces, the known automated machines, like the machine disclosed in U.S. Pat. No. 5,569,003, utilize a design that includes a series of storage columns that store blank workpieces and a series of corresponding shuttles that transport the workpieces from the storage area to the engraving area. The shuttles also hold the workpiece in place during the engraving operation. Because the orientation of the workpiece is critical to producing a properly engraved item, each storage column and shuttle must be uniquely configured to handle a particular size and shape of workpiece. Thus, to engrave a workpiece having a new shape, many parts of the automated engraving machine must be exchanged to accommodate the new shape.
Another problem with the known automated engraving machines is the manner in which workpieces are stored. In the typical automated engraving machine, blank workpieces are stacked one on top of another in storage columns. When workpieces are loaded into the storage columns or when workpieces are removed from the storage columns for engraving, the workpieces tend to slide against each other. The resulting contact of workpiece on workpiece may result in scratches or other damage on one or both of the workpieces. This damage, which occurs prior to the engraving process, results in a poor quality product.
In light of the foregoing, there is a need for a workpiece carrying system that will eliminate the need to account for each individually shaped workpiece and that will protect the workpieces.
SUMMARY OF THE INVENTION
Accordingly, the present invention is directed to a system and method for holding and transporting engraveable workpieces of different configurations. The advantages and purposes of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The advantages and purposes of the invention will be realized and attained by the elements and combinations particularly pointed out in the appended claims.
To attain the advantages and in accordance with the purposes of the invention, as embodied and broadly described herein, the invention is directed to a system for holding workpieces of different configurations. The system includes a first engraveable workpiece that has a first configuration and a second engraveable workpiece that has a second configuration that is different from the first configuration. There is provided a first workpiece carrier that has an internal relief configured to receive and hold the first engraveable workpiece. There is also provided a second workpiece carrier that has an internal relief configured to receive and hold the second engraveable workpiece. The outer shape of the second workpiece carrier has substantially the same shape as the outer shape of the first workpiece carrier.
In another aspect, the invention is directed to an engraving system. The engraving system includes a first engraveable workpiece that has a first configuration and a second engraveable workpiece that has a second configuration that is different from the first configuration. There is provided a first workpiece carrier that has an internal relief configured to receive and hold the first workpiece and a second workpiece carrier that has an internal relief configured to receive and hold the second workpiece. The outer surface of the second workpiece carrier has substantially the same shape as the outer surface of the first workpiece carrier. There is further provided an engraving machine that includes a workpiece clamping device. The workpiece clamping device is configured to receive either the first workpiece carrier or the second workpiece carrier to position the first or second workpiece held therein for engraving.
In still another aspect, the invention is directed to an engraving system that includes an engraveable workpiece and a workpiece carrier that has an internal relief configured to receive the engraveable workpiece. A snap lock is disposed along the internal relief to hold the engraveable workpiece within the internal relief.
In yet another aspect, the invention is directed to an automated engraving system that includes a storage device for storing a plurality of engraveable workpieces. There is also provided a plurality of workpiece carriers to be stacked within the storage device. Each of the workpiece carriers is configured to carry one of the plurality of engraveable workpieces and provide a buffer from an adjacent workpiece to prevent the workpieces from being damaged in the storage device.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings,
FIG. 1
is a top view of a workpiece carrier in accordance with the present invention;
FIG. 2
is a partial side cross-sectional view of the internal relief of the workpiece carrier according to the present invention;
FIG. 3
is a partial top view of a tab and opening positioned along the internal relief of a workpiece carrier;
FIG. 4
is a bottom view of an exemplary embodiment of the workpiece carrier of the present invention;
FIG. 5
is a partial side cross sectional view of the workpiece carrier of
FIG. 4
, illustrating a workpiece being held within the internal relief;
FIGS. 6
a
-
6
d
are top views of workpiece carriers having internal reliefs of varying configurations;
FIG. 7
is a front view of an exemplary automated engraving machine;
FIG. 8
is a side view of the automated engraving machine of
FIG. 7
; and
FIG. 9
is a top view of a storage device of the automated engraving machine illustrating the storage of a workpiece carrier of the present invention.
DETAILED DESCRIPTION
Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
In accordance with the present invention, a system for holding or transporting engraveable workpieces of different configurations is provided. The system includes a first workpiece carrier and a second workpiece carrier. The first carrier has an internal relief configured to receive and hold a first workpiece having a first configuration. The second carrier has an internal relief configured to receive and hold a second workpiece having a second configuration that is different from the configuration of the first workpiece. The outer shapes of the first and second workpiece carriers are substantially the same. An exemplary embodiment of a first workpiece carrier according to the present invention is shown in FIG.
1
and is designated generally by reference number
20
.
As shown in
FIG. 1
, carrier
20
includes a main body
22
. The main body includes an internal relief
26
. Internal relief
26
is configured to receive and hold an engraveable workpiece. As shown in
FIG. 2
, internal relief
26
is framed within main body
22
by a sidewall
47
and a backwall
49
.
In the embodiment illustrated in
FIG. 1
, internal relief
26
is configured to hold a heart-shaped workpiece. It is, however, contemplated that the internal relief may be configured to receive and hold any configuration of workpiece.
Preferably, as illustrated in
FIG. 1
, a plurality of snap locks
29
are positioned along internal relief
26
to hold the workpiece within the internal relief. Each snap lock
29
includes a tab
30
and a corresponding opening
32
. Snap locks
29
may be positioned uniformly around internal relief
26
or in any other pattern readily apparent to one skilled in the art as capable of holding the workpiece within internal relief
26
. Under certain circumstances, it is contemplated that a single snap lock or, alternatively, a continuous snap lock may securely hold the workpiece within the internal relief.
As illustrated in
FIG. 2
, the depth of internal relief
26
is determined by the thickness of the workpiece to be held therein. When workpiece
40
is positioned in internal relief
26
, one side
46
of the workpiece should contact tab
30
and the other side
48
of the workpiece should contact the backwall
49
. This configuration will ensure that the workpiece is held firmly within the workpiece carrier and will not shift with respect to the workpiece carrier when the workpiece is transported or engraved.
As shown in
FIG. 2
, tab
30
projects from main body
22
into internal relief
26
. Preferably, tab
30
has a rounded shape. As shown in
FIG. 3
, one opening
32
is positioned just outwardly of each tab
30
. Preferably, the shape of opening
32
generally follows the contours of internal relief
26
and extends past the outer edges of the corresponding tab
30
. The opening
32
leaves a relatively small strut
42
of main body
22
between tab
30
and opening
32
.
When a workpiece
40
is inserted into internal relief
26
, the workpiece will initially contact tab
30
. Preferably, main body
22
is made of a lightweight, flexible material, such as plastic, so that the contact of workpiece
40
on tab
30
causes strut
42
to flex outwardly into the area created by opening
32
. The movement of strut
42
allows the edge of workpiece
40
to move past tab
30
. The rounded shape of tab
30
facilitates this motion. When workpiece
40
is positioned fully within internal relief
26
and the edge of workpiece
40
has moved past tab
30
, strut
42
flexes, or snaps, back to its original position, thereby locking workpiece
40
between tab
30
and backwall
49
and firmly holding the workpiece within internal relief
26
.
As shown in
FIG. 2
, tabs
30
also provide a buffer
44
between the surface
46
of workpiece
40
and the top surface
48
of main body
22
. This buffer will prevent surface
46
of workpiece
40
from being scratched or otherwise damaged if a number of carriers are stacked upon one another. This is particularly beneficial in automated engraving machines where stacks of blank workpieces are stored in storage columns or other storage devices.
In the exemplary embodiment and as shown in
FIGS. 1
,
4
and
5
, backwall
49
of internal relief
26
includes an opening
28
. Opening
28
provides access to the side of workpiece
40
that is placed into internal relief
26
and that contacts backwall
49
. This opening allows both sides of the workpiece to be engraved, if desired.
As shown in
FIG. 4
, backwall
49
preferably covers the majority of one side of the internal relief
26
. The size and shape of opening
28
defines the area of the workpiece that is accessible for engraving. The size and shape of opening
28
may be determined based on the configuration of workpiece to be held in the internal relief and the desired amount of engraveable area on the workpiece.
It is contemplated that both sides of the workpiece may be engraved. However, in the case where only one side of the workpiece is to be engraved, the workpiece is preferably inserted into internal relief
26
such that the engraveable side
48
of workpiece
40
is facing opening
28
. In this position, backwall
49
covers all of the engraveable side of workpiece
40
, with the exception of the engraveable area exposed by opening
28
. Thus, backwall
49
protects the majority of the workpiece from scratching or other damage that may occur during the storing, transporting, or engraving of the workpiece.
As illustrated in
FIGS. 6
a
-
6
d
, internal relief
26
may be configured to receive and hold any configuration of workpiece. Preferably, the internal relief has substantially the same shape as the workpiece to be held therein. However, as shown, the outer surfaces
22
of each carrier have substantially the same shape. The present invention contemplates that the outer shape of each carrier will differ only by a nominal manufacturing tolerance that will be readily apparent to one skilled in the art. In the exemplary embodiments the carriers have a substantially square shape, although it is contemplated that alternative shapes may be used.
The common shape of the workpiece carrier simplifies both the engraving process and the engraving machine used to engrave the workpieces. Because each differently shaped workpiece is held within a carrier that has a common outer shape, the engraving process and machine must only account for the single outer shape of the carrier and not the variety of different shapes of the individual workpieces. Thus, the mechanism used to clamp the workpiece in position for engraving need only handle the shape of the workpiece carrier. With this approach, a user will be required to clamp only the workpiece carrier and not the individual workpieces, which could have a variety of different configurations, within the clamping device. This will lower the complexity or components required to position the workpiece for engraving.
In accordance with the present invention, the carriers may be used in conjunction with an automated engraving machine. An exemplary automated engraving machine is illustrated in
FIGS. 7 and 8
. Exemplary engraving machines are disclosed further in U.S. Pat. No. 5,569,003 to Goldman, and pending U.S. Application Ser. No. 09/046,593 filed on Mar. 24, 1998, both of which are hereby incorporated by reference. It is also contemplated that the present invention may be used with a variety of engraving machines.
The automated engraving machine is designed to perform many of the detailed portions of the engraving operation. The automated engraving machine simplifies the engraving process to a point where an unskilled user may easily engrave any message or design into a blank workpiece. The automated engraving machine usually includes a computer that controls the engraving operation. The engraving operation begins when the user selects a particular configuration of workpiece and a message or design to be engraved on the particular workpiece.
As shown in
FIG. 7
, a typical automated engraving machine
51
includes several storage devices
50
for storing a supply of differently shaped workpieces. A supply of each shape of workpiece may be stacked within each storage device
50
. While the stacking is preferably vertical, it is contemplated that other stacking arrangements could
52
for moving a single workpiece from its respective storage device
50
to the engraving area. The computer operates the transporting devices to move the selected configuration of workpiece from the particular storage device
50
to the engraving area.
As shown in
FIG. 8
, a spring biasing device
58
corresponds to each storage device
50
. Spring biasing device
58
engages a pin
53
that traverses the storage device
50
and supports the stack of workpieces held within the storage column. The pressure of spring biasing device
58
on the stack of workpieces moves a single workpiece into a relief
55
within transporting device
52
. Thus, transporting device
52
will move a single workpiece having the selected configuration from storage device
50
to the engraving area.
The engraving machine
51
also includes a clamping device
57
and an engraver
54
mounted on a supporting structure. When transporting device
52
has positioned the workpiece in the engraving area, the computer causes the clamping device
57
to engage the workpiece and clamp the workpiece into place for engraving. The computer then controls the engraver to engrave the selected message or design on the workpiece.
Maintaining the proper alignment of the workpiece during the storing and transporting of the workpiece is important to ensure that each workpiece is properly engraved. If the workpiece were to shift in relation to either the storage device or the transporting device, the workpiece would be clamped in the engraving position out of alignment. This would result in the engraved message or design being similarly out of alignment on the workpiece.
Thus, in conventional automated engraving machines, each storage column
50
and corresponding shuttle
52
are uniquely configured to correspond to one particular shape of workpiece to maintain the correct alignment of the workpieces. For example, if a rectangular workpiece were being engraved, both the storage column and corresponding shuttle would have to have a rectangular shape to ensure the workpiece is aligned properly for engraving. Similarly, if a square-shaped workpiece were being engraved, both the storage column and corresponding shuttle would have to have a square shape to maintain the proper alignment of the workpiece.
However, when the present invention is used in conjunction with an automated engraving machine, such as the one previously described, both the workpiece storing devices and the workpiece transporting devices of the engraving machine can be made generically. That is, the storing and transporting devices need only be configured to store and transport the workpiece carrier and not the individual workpiece. Because the storage device is configured to hold and maintain the alignment of the workpiece carrier, the storage device can therefore store and maintain the alignment of any configuration of workpiece that can be held in the workpiece carrier. Similarly, because the transporting device is configured to transport and maintain the alignment of the workpiece carrier, the transporting device can therefore maintain the alignment of any configuration of workpiece that can be held in the workpiece carrier. Thus, the common shape of the workpiece carrier allows the storage device to be configured independently of the configurations of the individual workpieces.
In addition, the workpiece clamping device of the engraving machine can also be made generically to engage only the common shape of the workpiece carrier to fix the workpiece carrier during the engraving process. As described previously, the carrier securely holds the workpiece within the internal relief. Thus, when the clamping device clamps the workpiece carrier, the individual workpiece is also clamped, regardless of the configuration of the individual workpiece.
In a preferred embodiment, the main body
22
of carrier
20
includes a surface irregularity
24
along the outer surface
34
. As shown in
FIG. 9
, surface irregularity
24
is configured to engage a corresponding section
62
of storage device
50
. The engagement of the surface irregularity with the storage device will ensure workpiece carrier
20
, and, thus, the workpiece, is stored in the storage device with the proper orientation and alignment. Thus, the workpiece will be properly aligned in the engraving machine when the workpiece is engraved. Similarly, the transporting and clamping devices of the engraving machine may also include sections corresponding to surface irregularity
24
to ensure proper alignment and orientation of the workpiece.
In the embodiment illustrated in
FIG. 9
, surface irregularity
24
is positioned off-center along one edge of outer surface
34
. The off-center position of irregularity
24
prevents the carrier from being loaded into the engraving machine upside down. If an upside down loading of the carrier was attempted, the surface irregularity would not align with the corresponding section
62
in the storage device
50
. Thus, the off-center position ensures that the engraveable side of the workpiece will be properly positioned under the engraver.
It will be apparent to those skilled in the art that various modifications and variations can be made in the method of manufacture of the present invention and in construction of this workpiece securing carrier without departing from the scope or spirit of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims
- 1. An engraving system, comprising:a first engraveable workpiece having a first configuration; a second engraveable workpiece having a second configuration different from the first configuration; a first workpiece carrier having an internal relief configured to receive and hold the first workpiece; a second workpiece carrier having an internal relief configured to receive and hold the second workpiece, the outer surface of the second workpiece carrier having substantially the same shape as the outer surface of the first workpiece carrier; and an engraving machine having a workpiece clamping device configured to selectively receive either the first workpiece carrier or the second workpiece carrier to position the first or second workpiece held therein for engraving.
- 2. The system of claim 1, wherein the engraving machine includes a first and a second storage column configured to store the first and second workpiece carriers, the first and second storage columns being substantially the same dimension in cross section.
- 3. The system of claim 2, wherein the outer surfaces of the first and second workpiece carriers include a surface irregularity that aligns with a corresponding section of the first and second storage columns to align the first and second workpiece carriers within said columns.
- 4. The system of claim 3, wherein the surface irregularity of the first and second workpiece carriers aligns with a corresponding section of the workpiece clamping device to align the first and second workpiece carriers within the workpiece clamping device.
- 5. The system of claim 3, wherein the surface irregularity is positioned off-center along one edge of the outer surfaces of the first and second workpiece carriers.
- 6. The engraving system of claim 1, further comprising a storage device for storing a plurality of one of the first and second workpiece carriers, said plurality of workpiece carriers being stacked within the storage device, each of said plurality of workpiece carriers configured to provide a buffer between adjacent workpieces to prevent the workpieces from being damaged in the storage device.
- 7. An inscribing system comprising:a first workpiece having a first configuration; a second workpiece having a second configuration different from the first configuration; a first workpiece carrier having a locking mechanism configured to secure the first workpiece to the first workpiece carrier; a second workpiece carrier having a locking mechanism configured to secure the second workpiece to the second workpiece carrier, the outer shape of the second workpiece carrier having substantially the same shape as the outer shape of the first workpiece carrier; an inscriber operable to inscribe the first and second workpieces; and a mechanism configured to securely hold either the first workpiece carrier or the second workpiece carrier to position the first or second workpiece held therein for inscribing.
- 8. The system of claim 7, wherein each of the first and second workpiece carriers includes an opening to expose at least a portion of both sides of the workpiece held thereon.
- 9. The system of claim 7, wherein the first workpiece carriers includes a first relief configured to receive the first workpiece and the second workpiece carrier includes a second relief configured to receive the second workpiece carrier.
- 10. The system of claim 9, wherein the first workpiece carrier includes a series of locking mechanisms disposed around the perimeter of the first relief and the second workpiece carrier includes a series of locking mechanisms disposed around the perimeter of the second relief.
- 11. The system of claim 7, wherein the inscriber is an engraver.
US Referenced Citations (20)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1303260 |
Jan 1973 |
GB |
46987 |
Feb 1989 |
JP |